AVR-R438 Automatic Voltage Regulator For Generators Replacement

Specification：

AVR-R438 Automatic Voltage Regulator For Generators Replacement

Specification：

Voltage regulation +/-0.5% at steady state and constant speed
Phase to phase voltage sensing
Controls by transistor means the regulation quality is independant of load applied
Integrated "LAM" system to cope with increased loads applied to the engine
Suitable for high levels of viration and harsh environments
The R438 is compatible with other modules giving additional functions
Standard power supply: AREP or PMG
Rated overload current: 8A-10s
Electronic protection(overload,shortcircuit on opening of voltage sensing circuitexcitation overload current for 10 seconds then return to approximately 1A).
Fuse: F1 on X1,X2.8A;slow-250V
Voltage sensing: 5VA isolated via transformer
0-110V terminals=90-140V
0-220V terminals=170-260V
0-380V terminals=340-520V
Voltage regulation +/-1%
Normal or rapid response time via ST2 jumper
Voltage adjustment via potertiometer P2
Current sensing(parallel operation): C.T. 2.5VA cl1,sencondary 1A(optional)
Quadrature drop adjustment via potertiometer P1
Max,excitation current adjustment via P5
Applications to Alternators: LSA 42.2,43.2,44.2
Compatible with the AREP or PMG exitation system

Package Including：

Automatic Voltage Regulator AVR R438.

Item SpecificsCountry of Origin United StatesBrand FindmallMPN R438Type Automatic Voltage RegulatorModel Voltage RegulatorCustom Bundle NoBundle Description NoModified Item NoVoltage Regulation ±0.5%Remote voltage adjustment range ±0.5%Short circuit capability 3 x Irated for 10 secondsStandard power supply AREP or PMGRated overload current 8 A - 10 sVoltage sensing 5 VA isolated via transformeWarranty 1 year
Payment

1.We will arrange for shipment as soon as possible to ensure your item arrives on time.

Shipping

1.Usually your Items will be shipped within 1-3 business day after your payment is cleared.

International orders may take 10 to 30 business days to arrive.

2.We have CA, NJ warehouses and ship items may vary according to the stock.

3.No shipping on Weekends or US Public Holidays.

Returns

We now offer for US buyers 30 days money back guarantee . If US buyers does not like the item or feels not satisfied with the product, we will cover the return shipping fee & US buyer can return the item and get refund for item price only.

Contact Us

If there are any defects or issues with the product, we will resolve them for you as soon as possible. Thank you for your understanding and support.

response

We offer high quality products, competitive prices and prompt delivery .Please add us to your list of favorite sellers. Our company has experience in serving the global aftermarket. Thank you for your business. Best wishes!

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Specification：

Voltage regulation +/-0.5% at steady state and constant speed
Phase to phase voltage sensing
Controls by transistor means the regulation quality is independant of load applied
Integrated "LAM" system to cope with increased loads applied to the engine
Suitable for high levels of viration and harsh environments
The R438 is compatible with other modules giving additional functions
Standard power supply: AREP or PMG
Rated overload current: 8A-10s
Electronic protection(overload,shortcircuit on opening of voltage sensing circuitexcitation overload current for 10 seconds then return to approximately 1A).
Fuse: F1 on X1,X2.8A;slow-250V
Voltage sensing: 5VA isolated via transformer
0-110V terminals=90-140V
0-220V terminals=170-260V
0-380V terminals=340-520V
Voltage regulation +/-1%
Normal or rapid response time via ST2 jumper
Voltage adjustment via potertiometer P2
Current sensing(parallel operation): C.T. 2.5VA cl1,sencondary 1A(optional)
Quadrature drop adjustment via potertiometer P1
Max,excitation current adjustment via P5
Applications to Alternators: LSA 42.2,43.2,44.2
Compatible with the AREP or PMG exitation system

Package Including：

Automatic Voltage Regulator AVR R438.

Item SpecificsCountry of Origin :United StatesBrand :FindmallMPN :R438Type :Automatic Voltage RegulatorModel :Voltage RegulatorCustom Bundle :NoBundle Description :NoModified Item :NoVoltage Regulation :±0.5%Remote voltage adjustment range :±0.5%Short circuit capability :3 x Irated for 10 secondsStandard power supply :AREP or PMGRated overload current :8 A - 10 sVoltage sensing :5 VA isolated via transformeWarranty :1 year

PaymentShippingReturnsContact Usresponse

1.We will arrange for shipment as soon as possible to ensure your item arrives on time.

1.Usually your Items will be shipped within 1-3 business day after your payment is cleared.

International orders may take 10 to 30 business days to arrive.

2.We have CA, NJ warehouses and ship items may vary according to the stock.

3.No shipping on Weekends or US Public Holidays.

We now offer for US buyers 30 days money back guarantee . If US buyers does not like the item or feels not satisfied with the product, we will cover the return shipping fee & US buyer can return the item and get refund for item price only.

If there are any defects or issues with the product, we will resolve them for you as soon as possible. Thank you for your understanding and support.

We offer high quality products, competitive prices and prompt delivery .Please add us to your list of favorite sellers. Our company has experience in serving the global aftermarket. Thank you for your business. Best wishes!

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On Nov 9, 2026 at 21:46:10 PST, seller added the following information: